/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************/

package org.pentaho.di.trans.steps.loadsave.validator;

import java.util.Random;

/**
 * @author Andrey Khayrutdinov
 */
public class EnumLoadSaveValidator<E extends Enum<E>> implements FieldLoadSaveValidator<E> {

  private final Enum<E>[] values;

  public EnumLoadSaveValidator( E defaultValue ) {
    this( defaultValue.getClass() );
  }

  @SuppressWarnings( { "unchecked", "rawtypes" } )
  public EnumLoadSaveValidator( Class<? extends Enum> clazz ) {
    this.values = clazz.getEnumConstants();
  }

  @SuppressWarnings( "unchecked" )
  @Override
  public E getTestObject() {
    return (E) values[new Random().nextInt( values.length )];
  }

  @Override
  public boolean validateTestObject( E testObject, Object actual ) {
    return testObject == actual;
  }
}
